EXPERIMENT: Sulfuric or Muriatic ACID How to REMOVE Melted ALUMINUM on a CRANKSHAFT? Crank Resto
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Published 2021-08-03
• BUSTED! What the INSIDE of a Briggs a...
Common *SULFURIC ACID NOT HYDROCHLORIC Battery ACID vs. MURIATIC ACID EXPERIMENT:
Lawnmower ENGINE CRANK SHAFT journal RESTORATION VIDEO How to REMOVE Melted ALUMINUM on a CRANKSHAFT surface - Can it be done? Is the Crank shaft ruined? Engine RAN OUT OF OIL and BROKE the ROD. A Briggs and Stratton Lawnmower 12.5 Flathead riding lawn mower engine CRANKSHAFT is restored. Enjoy friends! SAME Procedure for all crankshafts resurface.
CAUTION: Take ALL SAFETY PRECAUTIONS and work only in a well ventilated area when using all chemicals. DO NOT BREATHE FUMES or get in eyes.
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PLEASE KEEP IN MIND when you are watching my videos: I am showing you the least expensive, quickest "backyard" methods for repairing or servicing your lawnmower or equipment. Replacing all components such as gaskets and fuel lines is always recommended when rebuilding or repairing equipment. With these videos I hope you are able to fix and repair your lawnmower yourself with minimal parts, knowledge and tools. Thank you for watching!
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All Comments (21)
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Good on ya! Sometimes, it's not about the cost; it's about the skills that are being rapidly lost.
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I have only had to 1 one like that on a generator and it was my fault for not checking the oil before i started it. I was half asleep after a 15 work day and now i make sure to check the oil in any 4 stroke engine before i start it
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I was skeptical but the Muratiic acid was AMAZING. My first instinct was to try a propane torch because I assumed that the combination of Aluminum's low melting temp and high rate of thermal expansion would make it pop it loose and drip Aluminum on the floor. I gave up out of fear of over heating the crank. The only thing I would do differently next time would be to apply bug spray on myself first because bugs were biting me and I couldn't risk swatting them with my acid covered gloves LOL
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So Mr. Tech Tip 😎 that acid wow really did the job ! Two in one day NICE ‼️ Great save .
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Wow! I thought that crank was toast great job
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Good video Jeff. Looking forward to watching the rebuild.
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Proper job! I've tried hydrochloric acid before and like you it did nothing.
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Thanks for the rope trick!!
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Hi, thanks for this vid had a cylinder go down on my pro XS 250 merc and it was coated with aluminum. Took about 2 hours and a good honing and she’s ready for a new piston.
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YOU'RE BACK, its about time. Thanks.
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Hello. my experience would steer me towards sodium hydroxide ( lye) solution will dissolve aluminum and has no effect on steel what so ever. It is how machinists clean aluminum from files . keep making the videos . Great.
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emery cloth for sanding, wont contaminate the metal with sand, but "it's a lawnmower not the space shuttle"
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that eng had to be run with no oil alum. melts at 1100-1200 deg i think norrmal running dont get that hot you may be able to heat with a torch and wipe it off
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nice!
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I’ve done it a lot but most of the time crank is bad and not in specks
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i wonder if you could put the rod on loose and use it to rotate the emory cloth woud be smother than the rope
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Maybe should have washed off acid with baking soda before polishing journal. I would have used korcus cloth
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icleaned mine up with a sanding block runs good now
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I've seen this done makes the second time on dressing it - getting it ready for piston rod . never saw the acid used tho . great video ....Thanks
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R U going to do a video 📹 of the reassemble? That was awesome
